Improvement in the mode of producing the blast for blacksmiths  forges



-.W. & H. W. SHARP,

Counter Blast Patented Aug. 2, 1839.

UNITED STATES PATENT OFFICE.

\VM. SHARP AND H. V. SHARP, OF OATHARINE, NEV YORK.

IMPROVEMENT IN THE MODE 0F PRODUCING THE BLAST FOR BLACKSMITHS FORGES, dc.

Specification forming part of Letters Patent No. l .270, dated August :2, 18- 9.

f0 all whom it may concern:

Be it known that we, WILLIAM SHARP and HEMAN W. SHARP, of Uatharine,in the county of Ohetnung and State ofNew York, have invented a new and uselul Counter-Blast for Blacksmiths Fires; and we do hereby declare that the following ts a full and exact description thereof, reference being bad to the annexed drawings of the same, and making part of this specification.

The nature of our invention consists in providing a wind-chest and two tin or sheet-iron pipes, which are attached to the pipe I of the bellows, thereby dividing the wind which constitutes the blast and conducting the same into the fire at two opposite points, thus preventing the escape of any portion of the blast at either side of the tire and efi'ecting a counterblast.

To enable others skilled in the art to make and use our invention, we will proceed to describe lts construction and operation.

Figure 1 is a view of the outside of the wind chest and pipes; Fig. 2, inside of the same; Fig. 3, partition; Fig. 4, valve; Fig. 5, partition and valve together.

We construct a counter-blast for blacksmiths fires by applying to the bellows-pipe a windchest twelve inches long, eightinches wide,and six inches deep,or larger or smaller, as the case may require, which we construct with a partition, l, in the middle, with a hole, H, in the 7 same, and a valve, V, to slide over the said partition to shift the blast from one to both of the pipes, the wind-chest being shown at A in the accompanying drawings and the valve-handle at F. We then apply a tin or sheet-iron pipe,

B ,one and a half or two inches in diameter and twelve inches long. or longer or shorter, as the case may require, to the front side of the wind- -rhes', which conductsone-halfoftheblastinto the fire at 1). We then apply another pipe, (J, to the wind-chest, constructed with two elbows, which conducts the residue of the blast around and into the fire at E, the two blasts meeting in the center of the fire. We then build the backs in the ordinary manner. extra back, however, is required at the righthand side of the fire at E.

"We do not claim as our invention the corn struotion of a wind-chest with a tube leading from it and dividing at a distance from the wind-chest, so as to conduct the blast into the fire at opposite points, as this is not new.

What we do claim as our invention, and desire to secure by Letters Patent, is'

l. The construction of the wind-chest with two tubes leading from it for conducting the blast into opposite points of the fire, in cotnbination with the vertical valveV between them, by means of which we are enabled to use one or both of the aforesaid tubes, as represented in the accompanying drawings.

2. The mode of dividing the blast so as to direct it through one or more pipes by means of the valve V, arranged in the manner herein described, or in any other substantially the same, and by which the same effect would be produced.

WILLIAM SHARP. HEMAN W. SHARP. Witnesses l. G. ROBINSON, U. IL-BASKIN, 

